الوصف
The WOODWARD 8200-585 is a Digital Valve Positioner (DVP), representing a highly specialized configuration within Woodward’s high-output DVP series. This sophisticated electronic device is designed for extremely precise and dynamic control of powerful valves and actuators in critical industrial applications, such as large gas and steam turbine control systems.
WOODWARD 8200-585: Digital Valve Positioner (DVP) – High Output (10kW), Servo Interface Module (SIM)
The WOODWARD 8200-585 DVP is a top-tier driver for electric actuators, specifically engineered to handle the demands of very large or fast-acting valves. Its defining feature is its high power output combined with a Servo Interface Module (SIM), which suggests advanced capabilities for integrating with specific types of feedback or control architectures.
Product Overview
This particular part number represents a highly capable configuration within Woodward’s DVP product line, optimized for maximum power delivery and sophisticated control.
- Product Type: Digital Valve Positioner (DVP) / Electric Actuator Driver – High Output
- Manufacturer: Woodward
- Part Number: 8200-585
- Key Specifications:
- Input Power: 24 VDC.
- Output Power: This is a crucial distinguishing feature. The 8200-585 is identified as a High Output DVP, 10 kW. This means it can supply up to 10 kilowatts of power to operate extremely demanding electric actuators, making it suitable for the largest control valves.
- Ingress Protection (IP) Rating: Likely IP30. This indicates protection against solid objects larger than 2.5 mm, but no protection against water. It’s designed for installation inside a control cabinet or a well-protected enclosure.
- Input/Output Connections: Features Terminal Block (TB) Input/Output for all electrical connections (control signals, power, and feedback).
- Communication: This specific variant includes a Servo Interface Module (SIM), which implies specialized communication and control capabilities, likely for direct interfacing with a servo-driven system. While the primary DVP platform supports Ethernet (EGD), this particular configuration might prioritize the SIM interface.
- Safety Integrity Level (SIL): It is listed as Non-SIL. This means it’s designed for high-reliability control functions but is not certified for safety instrumented functions where strict SIL compliance is required as the primary protection layer.
- Motor Types: Compatible with Woodward’s Limited Angle Torque (LAT) and Brushless DC (BLDC) motor types, which are fundamental to their high-performance valves and actuators.
- Position Feedback: Relies on resolver feedback from the valve or actuator for highly accurate and continuous position monitoring.
- Function: The 8200-585 DVP receives a demand signal from a turbine or plant control system. It then processes this signal, integrating it with high-resolution position feedback from the actuator, to precisely drive the valve to the commanded position with immense power. Its internal controller uses advanced algorithms (such as PID and adaptive OptiTune) to ensure rapid, accurate, and stable valve control, essential for maintaining turbine stability, efficiency, and safety, especially in applications where very large and fast-acting valves are required.
Detailed Product Description
The Woodward 8200-585 Digital Valve Positioner (High Output with SIM) is a pinnacle of actuator driver technology, engineered for the most demanding control applications.
- Exceptional Power Output (10 kW): This DVP is distinguished by its ability to deliver a massive 10 kW of power to the connected actuator. This makes it ideal for driving the largest and heaviest electric valves that require significant force for precise and rapid movement.
- Integrated Servo Interface Module (SIM): The presence of a SIM is a key feature, suggesting specialized capabilities for interfacing with high-performance servo control systems or providing advanced feedback integration. This can enhance control fidelity and system responsiveness.
- High-Speed, Accurate Control: It incorporates advanced control algorithms and high-speed processing to accurately and quickly position valves, even under challenging dynamic conditions. This responsiveness is critical for maintaining stability during rapid load changes and precise regulation.
- Integrated Control Architecture: Built upon Woodward’s cutting-edge control architecture, it provides robust and efficient control for their range of electric motor-driven valves and actuators, specifically designed for both LAT and BLDC motor types.
- Resolver Feedback for Precision: By utilizing resolver feedback from the connected valve or actuator, the DVP establishes a highly accurate closed-loop control system, ensuring precise positioning, excellent repeatability, and minimal overshoot.
- ID Module Compatibility for Simplified Setup: Many newer Woodward valves and actuators come with an integrated “ID module.” When connected to the 8200-585 DVP, it can automatically read critical, valve-specific configuration information. This “plug-and-play” capability significantly simplifies installation, setup, and commissioning, reducing manual configuration errors.
- Robust and Reliable Design: Despite its sophisticated internal electronics, the DVP is built for durability in industrial environments. Its IP30 rating guides its installation within protected enclosures to ensure long-term reliability.
Technical Specifications (for the 8200-585 DVP)
Typical Applications
The WOODWARD 8200-585 Digital Valve Positioner is a core component in:
- Very Large Gas Turbine Fuel Control Systems: Precisely positioning the largest gas fuel metering valves in high-power generation applications, where massive fuel flow changes must be controlled rapidly and accurately.
- Large Steam Turbine Valve Actuation: Driving significant steam admission, extraction, or bypass valves for speed, load, and pressure control in large steam power plants, where high forces and dynamic response are paramount.
- Heavy-Duty Industrial Process Control: Any industrial application requiring the highly accurate, dynamic positioning of exceptionally large or powerful valves or motors, especially those integrated into advanced servo control architectures.